CN201851168U - Novel partition board horizontal split supporting ledge for turbine - Google Patents
Novel partition board horizontal split supporting ledge for turbine Download PDFInfo
- Publication number
- CN201851168U CN201851168U CN201020608005XU CN201020608005U CN201851168U CN 201851168 U CN201851168 U CN 201851168U CN 201020608005X U CN201020608005X U CN 201020608005XU CN 201020608005 U CN201020608005 U CN 201020608005U CN 201851168 U CN201851168 U CN 201851168U
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- CN
- China
- Prior art keywords
- dividing plate
- lug
- split
- ear
- steam turbine
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- Expired - Lifetime
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Abstract
The utility model relates to a novel partition board horizontal split supporting ledge for a turbine, which is simple in structure and high in installation adjusting precision. The novel partition board horizontal split supporting ledge adopts a non-split supporting positioning form, realizes excellent operation centering property of the turbine and comprises a split lug, the split lug is mounted between a lower half of a partition board and a lower half of a corresponding partition board sleeve and is respectively connected with a positioning device and a position adjusting device, and a through hole is arranged at the center of the split lug.
Description
Technical field
The utility model relates to a kind of steam turbine stator split supporting structure, and ear is taken in the novel dividing plate horizontal flange supporting of steam turbine that is specially adapted between impulse steam turbine dividing plate and diaphragm housing ring.
Background technique
In the impulse steam turbine fixedly the diaphragm housing ring of the dividing plate of stator blade and supported diaphragm constitute the stator portion cover of steam turbine, dividing plate and diaphragm housing ring are branch form in the level, last lower semi-diaphragm employing split flange bolt is connected with holding down bolt.The supporting of dividing plate in diaphragm housing ring is positioned with dual mode, and a kind of is split hanger bearing and orientation type, another kind of non-split supporting means.No matter adopt the one side of which kind of form will guarantee dividing plate and diaphragm housing ring self energy free expansion and contraction, keep its center when expanding and shrink constant on the other hand again.
Most of medium-sized partition board of steam turbine horizontal flange adopts hanger bearing to take ear more now, the ear structure of taking of this orientation type is taken the ear structure complexity than non-split, assembling repair amount is little, and produce stress easily concentrates at the hanger bearing place, but because its assembling back centering performance in service is good, so be widely adopted.Traditional non-split supporting take ear because supporting surface away from horizontal flange, particularly there is the problem to the neutrality difference in the start-up course in steam turbine operation.
Summary of the invention
The utility model is at the problem that occurs in the horizontal flange supporting structure between existing partition board of steam turbine and diaphragm housing ring, provide a kind of simple in structure, install and adjust the precision height, adopt non-split supporting orientation type, ear is taken in the novel dividing plate horizontal flange supporting of the steam turbine of steam turbine operation centering function admirable.
The purpose of this utility model realizes by the following technical solutions:
Ear is taken in the novel dividing plate horizontal flange supporting of a kind of steam turbine, it comprises the split lug, described split lug is installed under the dividing plate the corresponding diaphragm housing ring of half-sum between second and be connected with position regulator with positioning device respectively, and lug central authorities were provided with through hole in middle minute.
Described split lug is cylindrical, and second adopts the cylndrical surface Spielpassung Placement of unit shaft system split lug and dividing plate.
Divide the rear end of lug to be installed in second the lateral aperture of dividing plate in described, front end then is installed in the groove of second inner ring surface of diaphragm housing ring.
Described positioning device is a straight pin, and it is installed in diaphragm housing ring and is connected in second and with the pin-and-hole of split lug front end, and straight pin and diaphragm housing ring second and pin-and-hole adopt the transition fit of unit bore system.
Described position regulator is to be installed in the screw of the upper and lower end face in split lug rear end and the shim pack that is assembled together with screw.
The utility model mainly is made up of split lug, straight pin, shim pack, screw.Supporting is taken ear and is utilized cylindrical configuration to be assemblied in second the lateral aperture of dividing plate, utilizes straight pin to position, and the upper and lower end face of split lug utilizes screw assembling shim pack.
The cylndrical surface Spielpassung linkage structure that adopts unit shaft system between ear and dividing plate is taken in the split supporting, straight pin and partition body and split lug pin-and-hole adopt the transition fit of unit bore system, guaranteed to take the coupling stiffness of ear and partition body effectively, improved the split supporting and taken the whole assembling of ear installation precision.Have through hole in central position, lug cylndrical surface, the effect of this Kong Yousan aspect: first aspect assurance straight pin can be squeezed in the pin-and-hole with less resistance of air; The second aspect pin-and-hole for the split lug pack into behind the partition body with partition body second with drilling and reaming processing, this through hole can play the effect of chip-removal hole; The third aspect plays the effect in balance of steam hole for being communicated with the passage of dividing plate outer shroud and inside, lug hole, guarantees that split supports the stress balance of taking ear.
It is working surface with the lower end surface of lug that ear is taken in the utility model supporting, utilizes the combination of the pad of different-thickness in the shim pack to adjust, and reduces the assembling of dividing plate and diaphragm housing ring effectively and looks for repair workload in the middle operation process.Lug upper-end surface and lower end surface are same structure, but the shim pack that requires to be fitted thereon carries out reserving certain clearance between repair and horizontal flange, take ear for split supporting and produce limes superiors position when expanding, guarantee at steam turbine start and stop and running central diaphragm center with respect to the position degree of rotor center.
The beneficial effects of the utility model are: by analyses such as practical operation situation, it satisfies the steam turbine operation usage requirement, has enough rigidity and intensity, and structural manufacturing process is simple, is convenient to operations such as processing, installation, adjustment, has good and economic and stability.
Description of drawings
Fig. 1 takes the ear structure schematic representation for the supporting of model utility dividing plate horizontal flange.
Wherein 1, socket head screw, 2, pressing plate, 3, screw, 4, shim pack, 5, straight pin, 6, the split lug, 7 dividing plates first, 8 diaphragm housing rings first, 9 dividing plates second, 10 diaphragm housing rings second.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that the ear structure schematic representation is taken in this novel dividing plate split supporting.Utilize socket head screw 1 that pressing plate 2 is assemblied in first groove of 7 of dividing plate, be used for diaphragm housing ring first 8 with dividing plate first 7 synchronously the lifting.Split lug 6 is assemblied in second lateral aperture of 9 of dividing plate, utilizes straight pin 5 location.The upper and lower end face of split lug 6 utilizes the shim pack 5 of screw 3 fixing different-thickness combinations through adjusting respectively.Split lug 6 utilizes the lower end surface of having assembled pad 4 to be bearing in the groove of second 10 inner ring surface of diaphragm housing ring, be symmetrically arranged, can be steam turbine start and stop and in service bearing because steam flow impacts the turning torque of dividing plate generation and the radially microdisplacement of thermal expansion generation.
Claims (5)
1. ear is taken in the novel dividing plate horizontal flange supporting of steam turbine, it is characterized in that, it comprises the split lug, and described split lug is installed under the dividing plate the corresponding diaphragm housing ring of half-sum between second and be connected with position regulator with positioning device respectively, and lug central authorities were provided with through hole in middle minute.
2. ear is taken in the novel dividing plate horizontal flange supporting of steam turbine as claimed in claim 1, it is characterized in that described split lug is cylindrical, and second adopts the cylndrical surface Spielpassung Placement of unit shaft system split lug and dividing plate.
3. ear is taken in the supporting of the novel dividing plate horizontal flange of steam turbine as claimed in claim 1 or 2, it is characterized in that, divides in described the rear end of lug to be installed in second the lateral aperture of dividing plate, and front end then is installed in the groove of second inner ring surface of diaphragm housing ring.
4. ear is taken in the novel dividing plate horizontal flange supporting of steam turbine as claimed in claim 1, it is characterized in that, described positioning device is a straight pin, and it is installed in diaphragm housing ring and is connected in second and with the pin-and-hole of split lug front end, and straight pin and diaphragm housing ring second and pin-and-hole adopt the transition fit of unit bore system.
5. ear is taken in the novel dividing plate horizontal flange supporting of steam turbine as claimed in claim 1, it is characterized in that described position regulator is to be installed in the screw of the upper and lower end face in split lug rear end and the shim pack that is assembled together with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020608005XU CN201851168U (en) | 2010-11-16 | 2010-11-16 | Novel partition board horizontal split supporting ledge for turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020608005XU CN201851168U (en) | 2010-11-16 | 2010-11-16 | Novel partition board horizontal split supporting ledge for turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851168U true CN201851168U (en) | 2011-06-01 |
Family
ID=44093567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020608005XU Expired - Lifetime CN201851168U (en) | 2010-11-16 | 2010-11-16 | Novel partition board horizontal split supporting ledge for turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851168U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192331A (en) * | 2013-03-29 | 2013-07-10 | 江苏金通灵流体机械科技股份有限公司 | Adjustable locating assembly of marine engine partition plate or mechanical component |
| CN104481606A (en) * | 2014-11-25 | 2015-04-01 | 东方电气集团东方汽轮机有限公司 | Steam turbine separating plate for test |
| CN108278133A (en) * | 2018-01-10 | 2018-07-13 | 东方电气集团东方汽轮机有限公司 | The diaphragm housing ring of adjustable stiffness |
| CN108817936A (en) * | 2018-07-12 | 2018-11-16 | 上海卫星装备研究所 | A kind of satellite load repetition installation accuracy ensuring method |
| CN109026210A (en) * | 2018-10-10 | 2018-12-18 | 中国船舶重工集团公司第七0三研究所 | A kind of low parameter back pressure turbine novel partition bearing |
-
2010
- 2010-11-16 CN CN201020608005XU patent/CN201851168U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192331A (en) * | 2013-03-29 | 2013-07-10 | 江苏金通灵流体机械科技股份有限公司 | Adjustable locating assembly of marine engine partition plate or mechanical component |
| CN103192331B (en) * | 2013-03-29 | 2014-12-17 | 江苏金通灵流体机械科技股份有限公司 | Adjustable locating assembly of marine engine partition plate or mechanical component |
| CN104481606A (en) * | 2014-11-25 | 2015-04-01 | 东方电气集团东方汽轮机有限公司 | Steam turbine separating plate for test |
| CN104481606B (en) * | 2014-11-25 | 2016-02-17 | 东方电气集团东方汽轮机有限公司 | A kind of test partition board of steam turbine |
| CN108278133A (en) * | 2018-01-10 | 2018-07-13 | 东方电气集团东方汽轮机有限公司 | The diaphragm housing ring of adjustable stiffness |
| CN108278133B (en) * | 2018-01-10 | 2020-11-20 | 东方电气集团东方汽轮机有限公司 | Baffle plate sleeve capable of adjusting rigidity |
| CN108817936A (en) * | 2018-07-12 | 2018-11-16 | 上海卫星装备研究所 | A kind of satellite load repetition installation accuracy ensuring method |
| CN109026210A (en) * | 2018-10-10 | 2018-12-18 | 中国船舶重工集团公司第七0三研究所 | A kind of low parameter back pressure turbine novel partition bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |
|
| CX01 | Expiry of patent term |